Prototype javascript framework

What?

Prototype javascript framework (prototype.js) is a library of front-end javascript classes and class extensions (Array, Ajax, Event...) aimed to help building interactive web pages. The library (current version 1.6.0) was originaly written in 2005 by Sam Stephenson and is published under MIT License (same as Ruby on Rails) which means it can be used in any project almost without limits.

Who?

Prototype core team consists of web developers from all around the world (USA, Canada, Austria, UK...) - Sam Stephenson, Thomas Fuchs, Justin Palmer, Andrew Dupont and others.

Why?

What makes this library so good?

• published as single 120kB file
• lincense allows free use in almost any project
• easy to use, simplifies many standard tasks
• standard compliant, supports all current browsers
• good documentation (e.g. official api docs, tutorials or Using Prototype by Sergio Pereira)

Where?

The latest version is available at prototypejs.org/download